Medicare Part D

What can happen with the CVS-Aetna merger

A pedestrian walks by a CVS store.
CVS Health bought Aetna in a deal worth $78 billion. Photo: Justin Sullivan/Getty Images

Federal judge Richard Leon is raising antitrust concerns about CVS Health's $78 billion takeover of Aetna, but legal experts say he simply doesn't have authority to nix the deal.

Why it matters: The biggest companies in health care keep getting bigger, and critics fear anticompetitive effects — but nothing has actually slowed the industry's rapid consolidation.

The complicated politics of Trump's rebate rule

HHS Sec Alex Azar and President Trump
Health and Human Services Sec. Alex Azar with President Trump. Photo: Alex Wong/Getty Images

The Trump administration's proposal to shake up how money moves through the prescription drug supply chain in Medicare works best if it's also extended to the commercial market, supporters say.

Yes, but: The politics of the proposal will almost certainly prevent this from happening. Opponents say the change is a handout to pharmaceutical companies and would increase premiums, and analyses of the proposal — including the government's — support this argument.